42443753 has 4 divisors (see below), whose sum is σ = 46302288. Its totient is φ = 38585220.

The previous prime is 42443741. The next prime is 42443759. The reversal of 42443753 is 35734424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42443753 - 2⁶ = 42443689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42443759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1929251 + ... + 1929272.

It is an arithmetic number, because the mean of its divisors is an integer number (11575572).

Almost surely, 2^42443753 is an apocalyptic number.

It is an amenable number.

42443753 is a deficient number, since it is larger than the sum of its proper divisors (3858535).

42443753 is a wasteful number, since it uses less digits than its factorization.

42443753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858534.

The product of its digits is 40320, while the sum is 32.

The square root of 42443753 is about 6514.8870289515. The cubic root of 42443753 is about 348.8225823245.

It can be divided in two parts, 4244 and 3753, that added together give a palindrome (7997).

The spelling of 42443753 in words is "forty-two million, four hundred forty-three thousand, seven hundred fifty-three".